<template>
<div class="login_container">
    <div class="login_box">
        <!-- 头像区 -->
        <div class="avatar_box">
            <img src="../assets/logo.png" alt="">
        </div>
        <!-- 登录表单 -->
    <el-form ref="loginFormRef" :model="loginForm" :rules="loginFormRules" class="login_from" label-width="0px">
        <!-- 用户名 -->
        <el-form-item prop="username">
            <el-input v-model="loginForm.username" prefix-icon="iconfont icon-user"></el-input>
        </el-form-item>
        <!-- 密码 -->
        <el-form-item prop="password">
            <el-input v-model="loginForm.password" prefix-icon="el-icon-user" type="password"></el-input>
        </el-form-item>
        <!-- 按钮 -->
        <el-form-item class="btns">
            <el-button type="primary"  @click="login">登录</el-button>
            <el-button type="info" @click="resetLoginForm">重置</el-button>
        </el-form-item>
    </el-form>
    </div>
</div>
</template>

<script>
export default {
    data(){
        return {
            //绑定登录表单对象
            loginForm: {
                username: 'admin',
                password: '123456'
            },
            //表单验证规则
            loginFormRules: {
                username:[{ required: true, message: '请输入登录名称', trigger: 'blur' },
                { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
                ],
                password:[
                    { required: true, message: '请输入登录密码', trigger: 'blur' },
                { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
                
                ]
            }
        };
    },
    methods: {
        // 重置表单
        resetLoginForm(){
            this.$refs.loginFormRef.resetFields();
        },
        login(){
            this.$refs.loginFormRef.validate(async valid => {//表单预验证
                if (!valid) return;
                const {data : res} = await this.$http.post('login',this.loginForm);
                if(res.meta.status != 200) return this.$message.error("登录失败");
                this.$message.success("登录成功");
                window.sessionStorage.setItem("token",res.data.token);//保存登录token值
                this.$router.push("/home");//登录页面跳转
            });
        }
    }
};
</script>

<style lang="less" scoped>
.login_container {
background-color: #2b4b6b;
height: 100%;
}
.login_box {
width: 450px;
height: 300px;
background-color: #fff;
border-radius: 3px;
position: absolute;
left: 50%;
top: 50%;
transform: translate(-50%, -50%);

.avatar_box{
    height: 130px;
    width: 130px;
    border: 1px solid #eee;
    border-radius: 50%;
    padding: 10px;
    box-shadow: 0 0 10px #ddd;
    position: absolute;
    left: 50%;
    transform: translate(-50%,-50%);
    background-color: #fff;
    img{
        width: 100%;
        height: 100%;
        border-radius: 50%;
        background-color: #eee;
    }
}
}

.login_from{
    position: absolute;
    bottom: 0;
    width: 100%;
    padding: 0 20px;
    box-sizing: border-box;
}
.btns{
    display: flex;
    justify-content: flex-end;
}

</style>
